Adults Grief Response: Inventory of Complicated Grief – ICG (Prigerson and Jacobs, 2001). The questionnaire examines adjustment to grief. Its 33 items measure non-adaptive symptoms of response to loss. The items make up two primary distress scales – traumatic distress and separation distress – which represent a uni-dimensional construct. The participants are asked to grade the degree to which they experience each of the symptoms presented, on a Likert scale of 1 (never) to 5 (always).